# N51: Monocoupe D145, registration cancelled 1938-04-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 12, 1938
- Status when cancelled: Valid registration
- Airframe: [Monocoupe D145](https://openairdocs.org/model/monocoupe-d145) (registry code 9250512)
- Serial number: D-117
- Type of aircraft: Fixed wing single engine
- Mode S code: A65F15
- Owner when cancelled: [Bureau Of Air Commerce U S Department Of Commerce](https://openairdocs.org/faa-owner/BUREAU%20OF%20AIR%20COMMERCE%20U%20S%20DEPARTMENT%20OF%20COMMERCE)
- Owner type: Government
- The mark today: https://openairdocs.org/aircraft/N51
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51
- Page: https://openairdocs.org/deregistered/N51-1938-04-12

From the FAA registry file of November 3, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Monocoupe D145: https://openairdocs.org/model/monocoupe-d145.md

## Other aircraft with N51

- [Registered now](https://openairdocs.org/aircraft/N51): Textron B300, S/N FL-1378
- [Cancelled 1949-06-23](https://openairdocs.org/deregistered/N51-1949-06-23): Beech C18S, S/N 6203. Owner: [Civil Aeronautics Administration](https://openairdocs.org/faa-owner/CIVIL%20AERONAUTICS%20ADMINISTRATION)
- [Cancelled 1938-04-15](https://openairdocs.org/deregistered/N51-1938-04-15): Curtiss Wright JN4C, S/N 6150. Owner: [Northwestern Aircraft Co](https://openairdocs.org/faa-owner/NORTHWESTERN%20AIRCRAFT%20CO)

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